GPU Passthrough ends up with PCI_NUM_PINS error

[server_paul]

I'm running Proxmox on my server and recently added a AMD Raden RX 5700 XT.
It is affected by the vendor-reset bug, but I solved that. I can now reboot the VMs without any errors.

The GPU has 1 HDMI and 3 DP Ports. I initally connected it via HDMI to my Monitor, which is connected to a smart power plug so I can turn it off completely when I'm not home. This worked well.

However, I now switched to DisplayPort and just "restarting" my monitor ends up in a error.

kvm: ../hw/pci/pci.c:1637: pci_irq_handler: Assertion `0 <= irq_num && irq_num < PCI_NUM_PINS' failed.
TASK ERROR: start failed: QEMU exited with code 1

The only way I was able to fix this is by rebooting Proxmox.

 

[server_paul]

I solved it - I used to do

echo 0 > /sys/bus/pci/devices/.../d3cold_allowed

because I had some troubles with that in the past. Once I echo'ed 1 into that, the error didn't return.
The VM however, still runs into an "internal error". After a reboot of the VM everything worked fine again...
Can I somehow get a log of what happened inside the Debian VM?

 

[Ryohka233]

I'm having similar issue with RX6400, when cheking d3cold_allowed it seems I have 1 by default though